Finding the Fourth Proportional to 357,821.39, 493,806.51 and 196,688.70
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Solution
The fourth proportional to 357,821.39, 493,806.51 and 196,688.70 is: 271,437.55
Step by Step Solution
- Step 1: Write the proportion equation
357,821.39 : 493,806.51 = 196,688.70 : x - Step 2: Convert to fraction form
357,821.39/493,806.51 = 196,688.70/x - Step 3: Cross multiply
357,821.39x = 493,806.51 × 196,688.70 - Step 4: Simplify right side
357,821.39x = 97,126,160,503.44 - Step 5: Solve for x
x = 97,126,160,503.44/357,821.39 - Step 6: Final answer
x = 271,437.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.